National Comfort Product CPG41238-U Series Installation manual - Safety First!
Installation Guide for Comfort Pack (CPG) Units
4
If any of the original wire as supplied with the furnace must be replaced,
it must be replaced with wiring material having a temperature rating of at
least 90°C.
This furnace must be installed so there are provisions for ventilating air.
Should overheating occur, or the gas supply fail to shut off, shut off the
manual gas valve to the furnace before shutting off the electrical supply.
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WARNING
THESE UNITS ARE NOT APPROVED FOR MOBILE HOME APPLICATIONS.
SUCH USE COULD RESULT IN PROPERTY DAMAGE, PERSONAL INJURY,
OR DEATH.
THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED,
LICENSED SERVICE PERSONNEL FOR PROPER INSTALLATION,
ADJUSTMENT AND OPERATION OF THIS UNIT. READ THESE
INSTRUCTIONS THOROUGHLY BEFORE ATTEMPTING INSTALLATION OR
OPERATION. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT
IN IMPROPER INSTALLATION, ADJUSTMENT, SERVICE OR MAINTENANCE
POSSIBLY RESULTING IN FIRE, ELECTRICAL SHOCK, PROPERTY DAMAGE,
PERSONAL INJURY OR DEATH.
DO NOT USE OXYGEN TO PURGE LINES OR PRESSURIZE SYSTEM FOR
LEAK TEST. OXYGEN REACTS VIOLENTLY WITH OIL, WHICH CAN CAUSE
AN EXPLOSION RESULTING IN SEVERE PERSONAL INJURY OR DEATH.
GAS-FIRED APPLIANCES ARE NOT DESIGNED FOR USE IN HAZARDOUS
ATMOSPHERES CONTAINING FLAMMABLE VAPORS OR COMBUSTIBLE
DUST, IN ATMOSPHERES CONTAINING CHLORINATED OR HALOGENATED
HYDROCARBONS, OR IN APPLICATIONS WITH AIRBORNE SILICONE
SUBSTANCES. SEE HAZARD LEVELS BELOW.
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WARNING
!
WARNING
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WARNING
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CAUTION
Safety First!
Before You Start
This unit is shipped with a cooling chassis installed in the
cabinet. Prior to installing the unit in the wall opening, the
shipping bolts located at the bottom on both sides of the cabinet
must be removed to allow for removal of the cooling chassis.
1/4” hole plugs provided with the unit should be installed in the
holes to prevent air leakage.
Shipping bolts are located on both sides below this sticker:
THE SHIPPING BOLTS MUST BE REMOVED PRIOR
TO INSTALLATION OF THE CABINET TO PERMIT
REMOVAL OF THE CHASSIS. INSTALL THE HOLE
PLUGS PROVIDED.
14299588
This unit is designed and approved for through-the-wall
installation only. The unit must be installed a minimum
of 8” above finish floor. If this unit is installed in a
residential garage, it must be installed so that the
ignition source and burners are located not less than 18
inches (457 mm) above the floor, and it must be located
or protected to avoid physical damage by vehicles. The
entire unit must not be installed outside.
The grille side of
the unit should extend 3/4” beyond the exterior wall to allow
moisture that may enter the outdoor section to drain. The pitch
of the internal drain pans toward the outside will assure proper
drainage when the cabinet is installed level. Masonry walls must
have a lintel to support the wall.
The interior of the unit may be installed with zero clearances to
adjacent combustible surfaces. The unit shall not be installed
directly on carpeting, tile or other combustible material,
except wood flooring. In order to be able to remove the chassis,
29” of open area must be left unobstructed in front of the access
panels. The 3/4” O.D. drain pan connection should be connected
to the building drain using the flexible tubing included and
a trap. The secondary drain offers protection from overflow.
The secondary drain feature is piped into the base of the unit
and drains through the weep holes outside. Reconnect 3” piece
of clear flexible tubing to secondary drain on drain pan. Position
secondary drain through grommet of chassis and connect to
flexible tubing (prime trap prior to operating).
The grille side must be kept free of any obstructions that
will reduce or alter the air flow pattern. The unit must be
installed at least 4 feet (1.22 m) from electric meters, gas
meters, regulators, and relief equipment. The vent of the
unit is located at the front grille. Distances from adjacent
public walkways, adjacent buildings, openable windows, and
building openings must be consistent with the National Fuel
Gas Code ANSI Z223.1 and/or CAN/CGA-B149 installation
codes, as well as local codes.
If an optional architectural grille is to be used on standard units,
the stamped and louvered grille provided must be removed.
Consult the factory prior to ordering product(s) that require an
optional architectural grille.